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Mitutoyo Caliper Radius Gauge Adapter — image 1
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Mitutoyo Caliper Radius Gauge Adapter

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Adapter for a Mitutoyo caliper that uses the depth blade to calculate a large radius

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Model information

Category
Tools
License
Creative Commons — Attribution — Noncommercial — NoDerivatives

This was designed as an adapter for a Mitutoyo caliper. It uses the depth rod to calculate the radius. Once the adapter is attached to the caliper, use a known true flat  surface, extend the depth blade and zero the caliper. It is now ready to take a measurement. Once measurement is acquired, use provided equation (see drawing and below) and the known width (this device is 180mm between the points) to determine the radius along the arc length. 

Designed in Solidworks

R = Radius of Curvature

h = is the sagitta

L = is the chord length (this is the width between the points of the device; 180mm)

 

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